Finding the Fourth Proportional to 679,708.13, 1,019,562.12 and 323,642.66
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Solution
The fourth proportional to 679,708.13, 1,019,562.12 and 323,642.66 is: 485,463.95
Step by Step Solution
- Step 1: Write the proportion equation
679,708.13 : 1,019,562.12 = 323,642.66 : x - Step 2: Convert to fraction form
679,708.13/1,019,562.12 = 323,642.66/x - Step 3: Cross multiply
679,708.13x = 1,019,562.12 × 323,642.66 - Step 4: Simplify right side
679,708.13x = 329,973,791,454.23 - Step 5: Solve for x
x = 329,973,791,454.23/679,708.13 - Step 6: Final answer
x = 485,463.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.